I have installed Log4OM and it all works okay for a couple of days.
But sometimes I switch on the computer, (like now) and load Log4OM and I find all my setting are lost and I have to start a new configuration again, very frustrating! I am running Windows XP and Log4OM as administrator.

Sorry if this has been addressed before; I did search the forum but can't find any help.

When this happens can you see a config.xml file in the C:\...............\AppData\Roaming\LogOM folder?

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in the same directory you will find a folder called "Backup". If you open this you may
find some ZIP or RAR files with the latest backups. If you are open the newest before
you change to a new config you will find all the needed files. Those you can copy and
paste it to the config folder and your original config will be back.

I am unable to open the zipped back up files of last night. It says "The Compressed (Zipped) Folder is invalid or corrupted"
Previous backups folders open okay and there are 3 config files in each folder.
I deleted the bad folder and renamed one of the previous good folder, but that didn't help
I will now have to load all my data again

I switched on my PC this morning and all settings for Log4OM were lost again and the programme opened as a new configuration.
I went to last night’s backup Zip file and it was corrupt and wouldn’t open. This happened the previous time Log4OM lost all settings. All other Zip backup files were okay and opened fine, just last night’s backup.
I don’t know if this is a clue to my problem; anyway once I copied over the 3 files from a good Zip backup everything is back to normal and running okay again.

My PC is running Windows XP Home and is only used for my Ham station. I do not used the PC for Internet downloading or browsing, just my Ham programmes, Log4OM, WSJT-X, JTAlert etc.
I ran Malwarebyte on your suggestion last time and again today and no problems were found on the PC; I do regular HD clean ups and run disk defragmenter.
I’ve never had a problem with any other programme or my previous logbook programme, HRD, so I’m really at a lose.

Please run chkdsk /r and see what the results are. It will take a long time to run. Not only does it do that a regular chkdsk /f does (fix errors), it checks all clusters for read errors and will take any data from bad clusters, move it to good clusters and mark the bad ones so that they are not used again. Defrags often, but not always, will not run if there are errors on a disk.

In the mean time, check the data zip files for being good before you switch off the PC, or just keep a known good set safe.

73 de Guy G4DWV 4X1LT

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